訂正日: 2006/10/20訂正理由: -訂正箇所: 引用文献情報訂正内容: Wrong : 0) C. Greither and D.K. Harrison, A Galois correspondence for radical extensions of fields, J. Pure Appl. Algebra, 43 (1986), 257-270. 1) P. M. Cohn, Algebra, vol. 2, John Wiley, London-New York-Sydney-Toronto, 1977. 2) H. F. Kreimer and M. Takeuchi, Hopf algebras and Galois extensions of an algebra, Indiana Univ. Math. J., 30 (1981), 675-692. 3) M. Kneser, Lineare Abhängigkeit von Wurzeln, Acta. Arith., XXVI (1975), 307-308. 4) C. Nastasescu and F. Van Oystaeyen, Graded Ring Theory, North-Holland, Amsterdam-New York-Oxford, 1982. 5) K. Newman, A correspondence between bi-ideals and sub-Hopf algebras in cocommutative Hopf algebras, J. Algebra, 36(1975), 1-15. 6) M.E. Sweedler, Hopf algebras, Benjamin, New York, 1969. 7) M.E. Sweedler, The predual theorem to the Jacobson-Bourbaki theorem, Trans. Amer. Math. Soc., 213 (1975), 391-406. 8) M. Takeuchi, A Hopf algebraic approach to the Picard-Vessoiot theory, J. Algebra, to appear. 9) M. Takeuchi, A private communication, January 1987. 10) A. Masuoka Corings and invertible bimodules, Tsukuba J. Math., to appear.
Right : [0] C. Greither and D. K. Harrison, A Galois correspondence for radical extensions of fields, J. Pure Appl. Algebra, 43 (1986), 257-270. [1] P. M. Cohn, Algebra, vol. 2, John Wiley, London-New York-Sydney-Toronto, 1977. [2] H. F. Kreimer and M. Takeuchi, Hopf algebras and Galois extensions of an algebra, Indiana Univ. Math. J., 30 (1981), 675-692. [3] M. Kneser, Lineare Abhängigkeit von Wurzeln, Acta. Arith., XXVI (1975), 307-308. [4] C. Nastasescu and F. Van Oystaeyen, Graded Ring Theory, North-Holland, Amsterdam-New York-Oxford, 1982. [5] K. Newman, A correspondence between bi-ideals and sub-Hopf algebras in cocommutative Hopf algebras, J. Algebra, 36 (1975), 1-15. [6] M. E. Sweedler, Hopf algebras, Benjamin, New York, 1969. [7] M. E. Sweedler, The predual theorem to the Jacobson-Bourbaki theorem, Trans. Amer. Math. Soc., 213 (1975), 391-406. [8] M. Takeuchi, A Hopf algebraic approach to the Picard-Vessoiot theory, J. Algebra, to appear. [9] M. Takeuchi, A private communication, January 1987. [10] A. Masuoka Corings and invertible bimodules, Tsukuba J. Math., to appear.